As spoken in IRC, probably caused by the a1-pdu issues (T233248), labsdb1009 has lost its PSU redundancy.
</system1/log1>hpiLO-> show record27
status=0
status_tag=COMMAND COMPLETED
Thu Sep 19 04:45:31 2019
/system1/log1/record27
Targets
Properties
number=27
severity=Caution
date=09/18/2019
time=18:02
description=System Power Supply: Input Power Loss or Unplugged Power Cord, Verify Power Supply Input (Power Supply 1)
Verbs
cd version exit show
</system1/log1>hpiLO-> show record28
status=0
status_tag=COMMAND COMPLETED
Thu Sep 19 04:45:34 2019
/system1/log1/record28
Targets
Properties
number=28
severity=Caution
date=09/18/2019
time=18:02
description=System Power Supplies Not Redundant